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Yes, It is possible to upgrade the processor on this laptop, and I have never heard that u cant upgrade processors on most laptops, I believe to the best of my understanding u can upgrade on almost all laptops

90 percent of the time a processor upgrade in a laptop is not possible as the processors are soldered on to the mother board. The only laptops i know that you can change the processors are early thinkpad by IBM as far as i know.

1. You must have a processor compatible with motherboard, an Intel Pentium 4M 2.2GHz P/N 91P7209. 2. Download and read pages 81 to 86 and above from the Hardware Maintenance Manual: http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-42308 3. Pay close attention to reinstall the fan assembly and apply thermal compound if necessary. 4. Re-assemble all the parts again by following the steps in reverse order of the manual.

NOTE: For future reference, your laptop will change to a 2366-FBx, M6x or 2367-FBx model depending on case.

for most computers, a 2 gb will do. for the processor, depending on the architecture it has, will depend if it is possible to change it (e.g. if you have lga 440, then it is not possible for a pinless processor to fit in.

It's possible that the XP is using the extra resource or processor usage, and there isn't anything that you can do. However, It's also possible that this machine was configurated for 2000, and that it just needs drivers for XP. You can start by going to IBM's support site and doing a bios flash to the most recent bios, and checking for a chip set driver update, patch, or for for XP. Also check for any processor speed stepping drivers or updated drivers. Try this and let me know.